#include <iostream>
#include <iterator>
#include <limits>
 
typedef std::pair<int,int> iPair;
template<class T>
std::istream_iterator<T>& operator >> (std::istream_iterator<T>& It,iPair& P){//これ不味いかも。
 
	P.first = (*It);
	It++;
 
	P.second =(*It);
	return It;
}
 
std::istream& operator >> (std::istream& is,iPair& P){
	is>>P.first>>P.second;
	return is;
}
 
 
int main(){
 
	std::istream_iterator<int> It(std::cin);
	std::istream_iterator<int> End;
	iPair P(0,0);
	while(It != End){
		It>>P;
		It++;
	}
	std::cin.clear();
	std::cin.ignore(std::numeric_limits<std::streamsize>::max(),'\n');
 
	std::cout<<P.first<<P.second<<std::endl;
 
	std::cin>>P;
 
	std::cout<<P.first<<P.second<<std::endl;
 
	return 0;
}

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MSAyIF56IAoKMyA0IF56

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